Gas burner for heating purposes



June 29 1926. 1,590,195

H. E. KERR GAS BURNER FOR HEATING PURPOSES Filed Dec. 8- 1924 alien-neg lid Patented June 29; 1926.

iren STATES P'ATENT OFFICE.

HARRY E. KERR, F CLEVELAND, OHIO, .ALSSIGNOR TO THE CLEVELAND GAS BURNER AND AEPLIANCE COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

GAS BURNER FOR HEATING PURPOSES.

Application filed. December 8, 1924. Serial No. 754,541.

My invention relates to an improvement in gas burners for heating purposes and the present burner is particularly constructed to permit it to be operated at its maximum efiiciency and capacity under conditions which might otherwise impair its usefulness, especially in a restricted chamber or a narrow elongated casing. Among other things my conception is to provide a burner adapted to produce a serles of spreading columns of flame in close contiguity, either lengthwise or diagonally of the burner, using separate pairs of reversely-inclined jets or noz zles placed on the bias or at a slant between two parallel gas distributing pipes or a manifold comprising two parallel gas distributing members. These spreading columns of flame are caused to burn parallelly with each other but diagonally or longitudinally of the burner, and a further purpose is to produce perfect combustion and the maximum size of heating flame in separate places on the bias or longitudinally as described within a minimum length and width of space.

In the accompanying drawings, Fig. 1 is a top view of my improved burner, and Fig. 2 is a side elevation thereof, the dotted lines representing the approximate size and shape of the flame. Fig. 3 is an enlarged sectional view transversely of the burner on slanting line 3-3 of Fig. 1.

The burner comprises a tubular manifold which in the present instance consists of a single casting having two parallel branches or tubes 2 and 3 connected together at their corresponding ends by a cross tube 4 having an intake extension 5 at its middle adapted to connect with a gas supply pipe. A convexly rounded portion 6 opposite intake extension 5 promotes uniform distribution of the incoming gas to both legs or branches of the burner; The opposite or outer ends of these burners are rigidiy connnected together by a web 7, and further rigidity may be obtained by connectin the branches together intermediate their en s by one or more simiiar webs 8, the number used being dependent upon the length of the burner.

In certain heater appliances where the space is restricted but a high temperature and. erfect combustion is required it have foun it desirable to em'loy a burner embodying reversely inciine jets, and in practice these jets must be properly pnopcrtioned and spaced apart at a predetermined distance to effect the best results. The present burner has been devised to permit the use of said jets in such appliances without any changes in proportions or settings of each pair of jets, the burner being made narrow in width for satisfactory use in such iappliances. Thus the parallel branches 2 and 3 are formedwith flattened bosses 9 at uniformly spaced intervals of their length, the fiat faces being inclined upwardly at an angle of approximately 15 and arranged in reversely inclined order on the opposed. sides of said parallelbranches. These bosses having inclined faces are also placed in staggered relation oppositely on the branches so that the reversely-inclined surfaces face each other in pairs on diagonal lines viewed from the top of the burner. Each boss is provided with a screw threaded opening at right angles to its face and separate brass jets or nozzles 10 are screwed into said openings, thereby providing a pair of co-acting. as ets extending upwardly toward each other at approximately right angles and spaced apart at their mouth ends centrally above the open space between the branches or tubes 2 and 3, respectively. Each jet or nozzle 10 has a cup-shaped intake 11 communicating with a small gas discharge orifice 12 in the base of the nozzle, and the outer and major length of the nozzle is formed with a larger bore M having lateral air intake openings. 15 adjacent orifice 12. Each pair of jets extend toward each other on a line which extends diagonally across both branches or tubes, or in other words, diagonally in respect to the longitudinal median line of the burner. The successive pairs of jets are also parallelly arran ed so that no interference in comingling the gases and air between each pair can occur. Thus the burner comprises a %ries of co-acting pairs of jets extending diagonally of the burner, each pair being parallel with the other pairs of jets at spaced intervals iengthwise thereof, whereby in operation two fine streams of gases are jetted at high velocity into confluence between and above each pair of nozzles and a predetermined amount of air is drawn through the same nozzles with the gas to produce an independent column of flame between the is or branches, which fianie issubstantial y ovoidal in cross section. The diagonai arrangement of the ets spreads this flame drag onally of the burner and in a longitudinal direction which is advantageous when the chamber or casing is relatively narrow and also advanta eous inv providing rapid inltial ignition of t e gas in starting operations. As shown, the jets or nozzles of each pair have their axes extending in the same vertical plane so that the gas and flame spreads at right angles to such axes. A slight ofiset relatlon of the jets will tend to spread the flame at an angle other than a right angle and the flame may thereby be caused to spread to a'greater degree in a longitudinal direction, if desired.

What I claim is:

1. A gas burner for heating purposes, comprising a single cast metal manifold having straight parallel branches I united by webs, and a series of, tubular gas and air commingling jets mounted upon each branch and arranged in staggered 'i'elation oppositely on said branches in pairs, each pair of jets extending di onally of the burner and. projectin upwar y at an inclination toward eac' other to efiect a commingling of separate streams of gas intermediate said branches, and all of the separate pairs of jets being parallel to produce separate sheets of flame spreading diagonally of said burner on parallel lines.

2. A gas burner for heating purposes, comprising parallel gas distributing tubes, a serieso air and gas commingling nozzles mounted upon each tube and arranged in pairs oppositely on said tubes and extending upwardly at an inclination toward each other, each ir of (Jo-operating nozzles extendin on iagonal lines across said burner and a apted to bring separate streams of combustible mixtures together to spread a single sheet of flame obliquely in respect to the parallel tubes and parallel with similar sheets of flame created by each pair of cooperating nozzles, the separate pairs of nozzles being all parallel diagonally of the distributing tubes.

In tetimony whereof I afiix my signature.

HARRY E. KEY- 

